Called UberPASSPORT, the service promises to make trips to Mexico "hassle-free" by offering transport from San Diego to Tijuana. The service isn't round-trip, however, meaning those visiting Tijuana and looking to return to the U.S. must get a ride to the international border, where they can walk across the pedestrian lane and back into the country. Once on the U.S. side, riders can request an Uber in San Diego to travel to their final destination. The service is clearly in its beginning stages: Uber said it's working to make cross-border pickup also available from Tijuana.

This is the first time an Uber trip will cross an international border, and the Passport feature is already enabled on the Uber app. The base fare is slightly more expensive ($4), plus $0.30 per minute and $2.35 per mile. There is a $20 border crossing fee for passengers, and riders must bring all of their required documentation to cross the border, including a U.S. passport.

Christopher Ballard, general manager for Uber Southern California, said Tijuana and San Diego will be brought even closer by the service. “UberPassport is a new way to facilitate cross-border opportunities by providing reliable and accessible transportation from San Diego to Tijuana,” he said. “Heading to Baja has never been more attainable."